Play Pong online with others as a team. Check near the bottom of the page to see which side you are randomly placed on. Use your mouse to move the paddle which is controlled by an aggregate of users represented by the blobs. Just like other online team games, Pong has its share of team killers. You'll notice them as blobs who hover near the top or bottom in an effort to offset any movement of the paddle by the other players. At least, I think that is what's going on.